Smart Healthcare System using Blockchain

Project Overview

The Smart Healthcare System using Blockchain is a project aimed at addressing one of the significant challenges in the healthcare industry – fragmented health records. The implementation utilizes blockchain technology to create a secure and efficient platform for managing electronic health records (EHR). The core idea involves placing medical record transactions on the blockchain, enabling a smart healthcare ecosystem.

Problem Statement

In the current healthcare landscape, organizations hold multiple and fragmented health records about patients. This project seeks to solve this issue by implementing a system where each patient has a dedicated block on the blockchain, with their electronic health record. A smart contract is employed to provide customized access to the patient's EHR, facilitating interactions with healthcare providers, insurers, and ensuring secure and streamlined payment settlements.

Basic Formalities

User Authentication

• Sign up/Login for Patients, Doctors, and Insurers.
• Unique identification using CNIC to generate a hash.

Data Storage

• Storing personal and medical details of patients in the form of a hash table.
• Use of CNIC as a unique key for generating hashes.

Patient Empowerment

• Patients can conveniently update their details.
• Ability to share medical data with chosen doctors and insurers.
• Option to view specific information and update health charges.

Security Measures

• Confidentiality maintained through a unique key.
• Users can choose preferred collision resolution methods (Linear Probing or Separate Chaining) at runtime.

Techniques Used

Hash Table

• Each patient has a dedicated block in the hash table.
• CNIC is used as a key for assigning blocks.

Hash Functions

• Insert function: To add new patient data.
• Search function: To find a specific block/patient.
• Remove function: To delete a patient's record.

Array of Objects

• Objects of doctors/insurers for efficient data organization.

Collision Resolution

• Users can choose between Linear Probing and Separate Chaining.
• Linear Probing allocates each key its own slot.
• Separate Chaining stores keys with the same hashes using linked lists.

Linked Lists

• Utilized for storing data in case of separate chaining.

Object-Oriented Programming (OOP) Concepts

• Use of classes, constructors, and objects for structured code organization.

How to Use

1. Clone the repository.
2. Run the application.
3. Sign up or log in as a Patient, Doctor, or Insurer.
4. Access and manage electronic health records.
5. Choose collision resolution method as needed.